Dual combustion system for combustion tube burners



Aug. 17, 1948. I v ouss u 2,447,211

FOR COMBUSTION TUBE BURNERS DUAL COMBUSTION SYSTEM Filed Dec. 23, 1946 Patented Aug. 17, 1948 DUAL COMBUSTION SYSTEM FOR oo BUSTION TUBE BURNERS Edward Rousseau, Jewett City, Conn.

Application December 2 This invention relates to improvements in liquid fuel burners of the type adapted for location in the fire box of a household range, waterheater or the like.

The principal object of the invention is the provision of a liquid fuel burner which is arranged and adapted to operate on liquid hydrocarbon fuel and is constructed in the novel manner to operate efliciently and economically. The burner is adapted for use in the fire box of a household range but it may be used for various other purposes; T s 7 According to novel features of the invention, the burner includes a base having various channels andupwardly extending perforated sleeves arranged to provide inner and outer systems of cooperating components to the end that the systems are independently operable or may be operated simultaneously. If desired the inner system may be used as for heating the lid of a stove without the necessity of operating the outer system which is desirable when it is not necessary to'employ the burnerfor space heating. 1

On the other hand, the outer system maybe used when it is desired for space heating or to heat a water coil adjacent thereto for other purposes. I

With the foregoing and various other'novel features and advantages and otherobjects of my invention as will become more apparent as the description proceeds, the invention consistsin --certain novel features of construction and in the combination and arrangement of parts as will be hereinafter moreparticularly pointed out in the claims hereunto annexed and more fully described and referred to in connection with the accompanying drawings wherein:

Fig. 1 is'a sectional elevational view through a burner embodying the novel features of the invention; and 1 Fig. 2 is a sectional plan view on the line 2-2 of Fig. 1' with certain rings or caps'omitted for clearness.

Referring now to the drawings more in detail, the invention will be fully described.

A base is represented by 2 which is preferably circular in form and. has a lower wall 3, an outer peripheral rim or rib 4 and upwardly extending concentrically arranged sleeve supporting ribs 6,

8, l8, l2 and M. A hollow hub I6 is disposed, as shown. An inner rim or rib l8 extends upwardly from the lower wall as does a dam 28'.

Sleeves 22, 24, 26, 28, 30-and 32 extend upwardly from the sleeve supporting rims and, as shown, are perforated in the usual manner as in connection with the innermost sleeve 32.

A cap ring 36 is supported by the centralhub 16, a cap ring 38 is supported by the rim l8, and a cap ring 39 is supported by sleeves 24 and 25. A cap 40 is provided on the upper end of the in- 3,1946, Serial No. "'4"1'7;9731j I zvlaimswit-1 sec 'nermost sleeve 32, a cap ring 42 is disposed on .the upper ends :of the sleeves 28 and 38 and an inclined cap ring 44 is disposed on the upper end of-theoutermost sleeve 22' which has openings .45 of any desired area.

' ;;;;Fueliinlets. ,46. and 48 'are provided in. the bottom wall-,3, the" formerleading into a chamber 58 and the lattergleading into, achamber 52. The

outerlperipheraljpart Arand thenext adjacent rib '10 form,;a. flame channel 56' and therribs' l2 and .6jf01m', aiflamering ,or channel 54-, the ribs 8 and I4 formna flamemhannel 58. -Wicks-;of"usual form. not shown,:;are. disposed inv these channels 54-, and 58.:1Theribsj0 and l2jare spaced apart to form:anqupwardlynextending air passageway '68 andareconnected togetherby spacers 62which have passageways; fifl therethroughg The rim I8 and the rib 8 are -spacediapart to-:form an'up- --wardly extending air, passageway 86 'therebetween 1 flowupwardlythrough-the passageways 8,8, and-.68.

and-are1connected by connectors 68. a Air may .The rib H has an opening therethrough which is indicated'by 'l5and is preferably'disposed'substantially diametrically opposite to the fuelxinlet :48. With the inlet; connected to a valved fuel supply when ;the sameis iopen fuel flows through v the inlet 46. and in th'edirection of arrows c,

through the opening l5 intothe'flame channel 7 which is connected through 84 t channel 58,-forined between ribs l2 and M which 58 and intheoperatiorl of the device the central portion of the-burner quicklybecomes heateds'o that the fuel is vaporized and air passing upwardly through the central"hub"l6 and passageway 68 supports combustion in the normal manner.

' The dam 28 which is disposed'between the rib 6 and rim l8 has alpassagew'ay 10- thereth fough which is preferably diametrically opposite the fuel inlet 48. Adjacent said 'nlet'the rib 6 supporting sleeve 24 extends inwardly andji's' connected to'the dam 28'so as to provide openings l2. The dam disposed as it is providesin conjunction with rib 8 and rim l8 an innr channell l 'and'outer'channel 18." Fuel therefor entering "inlet flows aroundf through channel 14, through opening 18 around through channel 16 and through 'openings'lz into the outer flame channel 154 as indicatedby arrows b.

. The ribs, 8 and lfl provide a aimed-lama 5 s 0 an inner flame in conjunction with inlet 46 and chamber 58 providean inner system.-- I r r This inner system may be' used as a unit by admitting fuel into the'chamber 58 from whence it flows through 15 to flamechannel 58 and thence to flame channel 56. I

-"The' 'rim 4' and rib 6 and channels 14 and 16 "provide an outer system wherein the flamechanpsi 55 is outermost. Fuel delivered through 48 and through I5, 80 and 65, the passageway 66 p-rovid- 7 ing air for either one or both of said systems.

The burner may be supported in any :des'ired manner in equipment with which itiis tobeused.

and there may be as many burners suitably connected together, as may be desired.

From the above it will be observed that fuel may be delivered through one or both of the fuel inlets to separate chambers from which it passes in a circuitous manner to flame channels'an'dibeing vaporized it mixes with air for combustion.

The construction is such that an inner system is surrounded by an outer system, each comprising flue inlets, vaporizing chambers and flame channels all to the end that either system may be operated independently of the other or'both may be operated simultaneously.

The novel construction facilitates ready and easy control of the'heat, efliciency and economy in operation and the construction is such as to make possible the easy cleaning thereof.

"The invention may be embodied inotherspecific forms without departing from the essential characteristics thereof. Hence, the present embodiments are therefore tobe considered in all respects merely as being illustrative and not as being restrictive, :thescope of the invention being indicated by the appended claims rather 'thanby the foregoing description, and all modifications and variations as fall within the meaning and purview and range of equivalency of the appended claims are therefore intended to be embraced therein.

What it is desired to claim and secure by LettersPatent .of the United States is:

1. .Aburner'forliquid fuel comprising in combination, inner and outer burner systems, said inner system including a lower wall, a central'hol- ,low hub extend ng u wardly from said wall, first and second and third and fourth sleeve support- ,ing ribs extending upward y from said wall 'in out ard yrseouentiallyspaced concentric relation, said first and second ribs forming a first flame channel and-said th rd and fourth ribs forming --a-second flame channel, perforated sleeves extending upwardly from said ribs at the sides of .said "flame channels, said wall provided -.with a primary fuel inlet between said hub and said first rib, and second and third ribs spaced apart .to form an upwardly ex ending ,air passageway, hollow connection-s between said second and third ribs and provided with openings therethrough whereby fuel may flow from said fuel inlet through said hollow connections .to sa d second .flame channel, said outer system including a lower wall and inner and intermedia e and outer .ribs extending uowardlv from said walland spaced apart andconcentrically arranged outside of .said

"inner system, said inner rib beingspaced from and supportingly connected to said fourth rib providing an upwardly extending airpassageway therebetween, said outer rib and said intermediate -r'ib forming a third flame channel, perforated .sleevesextending upwardly from said outer and intermediateribs, said wall being provided with a secondary fuel inlet between said intermediate and inner ribs, dams extending upwardly between :said intermediate and inner ribs having spaced outer ends providing an opening at a side of said wall zopposite said secondary inlet and having inner ends connected to said intermediate 'rib on opposite sides :Of-sai'd. secondary inlet, said intermediate rib having spaced openings adjacent the inner ends of said dams whereby fuel "may flow from said secondary inlet around said 'tdems :and through the openings in said intertween mediatezribs into said third flame channel.

2. A burner for liquid fuel comprising in combination, inner and outer burner systems, said innelnSYStem including a lower wall and a central hollow hub extending upwardly therefrom -:and first and second and third and fourth sleeve supporting ribs extending upwardly from said wall in outward sequentially spaced concentric relation, said first and second ribs forming a first :flamechannel and said third and fourth ribs forming a second flame channel, perforated sleeves extending upwardly from said ribs at the .sidesof said flame channels, said wall being pro- :vidcdWithia primary fuel inlet between said hub and saidwfirstiria-said second and third ribs beiin ispacedi, part to form an upwardly extending .a-ir massagewayiand hollow connections between said :second and third iI'ibS provided with openings therethrough whereby fuel may flow from said-:primary-inlet through said first flame channel and tosaid-sec'ond flame :channel through-the hollowponnections therebetween, said outer sys- ,tem,.i rcluding a lower-wall andinner and intermediateand outerribs extending upwardly from -sai,dwall and spaicedapartand concentrically arranged outside 101 said inner system, said inner ribspaced from and :supportingly connected to saidfourth :rib providing :an :upwardly extending air passageway and said outer and intermediate ribs forming a third Zflame channel, perforated sleeve-s extending (upwardly from said outerand intermediate ribs,,--said lowerwvall being provided witha secondary fuel inlet between said intermediate and inner ribs, dams extending upward- ;ly between Saidiintermediate-and inner ribs hav- :ing spaced outer ends providing an opening at a side "Of said lower wall opposite said secondary inlet ;and havin inner ends flonnected to said intermediate rib at opposite sides of said secondtaryiinlet, rsaid intermediate zrib having spaced openings adjacent the inner *ends of said dams therewith whereby jfuel' may flow from said secondary inlet around said dams and through the openings in said intermediate ribs into said third flame vchannel. a cap over the upper end of the sleeve of said first rib, a'cap ring extending besaid hub and said last mentioned sleeve, -a.oap-ring--on'the :upperends of the sleeves .of said second ,and third ribs, 'a cap ring between the sleeves of said fourth and said intermediate ribs, and an annular can .rinesupported by the sleeve of said outer EDWARD ROUSSEAU.

,nEEERENons .CITED 'Theifollowing references are of record in the file .of :this :patent:

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